Description :
The HTTP Time Protocol (HTP) is used to synchronize a computer\'s time withweb servers as reference time source. Htpdate will synchronize your computer\'stime by extracting timestamps from HTTP headers found in web servers responses.Htpdate can be used as a daemon, to keep your computer synchronized.

Accuracy of htpdate is usually better than 0.5 seconds (even better withmultiple servers). If this is not good enough for you, try the ntpd package.